You all need to understand what you're asking Dong (the original FlappyBird developer) to do... he can't simply plug FlappyCoin into his game!

The wallet is not even designed to scale up to thousands of users with tens of thousands of transactions. https://en.bitcoin.it/wiki/Accounts_explained#Account_Weaknesses

To implement any crypto-currency he would require major back-end database infrastructure supporting millions of users and countless transactions between those users every minute or even second... a very complex and costly thing to setup. At present he has zero back-end requirements and is making a killing on simple ad clicks with a solely front-end app..

These are just some of the reasons why there are no mobile games out there that currently integrate crypto-currency.

Unless we have a miracle... don't expect this coin to be integrated with the FlappyBird game any time soon!